JP6162195B2 - Carrier used in the method of repairing multiple parts simultaneously - Google Patents

Description

  The present invention relates to a carrier used in a method of repairing a plurality of parts simultaneously by irradiating a plurality of raw material powder layers with electromagnetic radiation or particle radiation. The present invention also relates to a method and system for repairing a plurality of parts simultaneously by irradiating a plurality of raw material powder layers with electromagnetic radiation or particle radiation using such a carrier.

  Aircraft components, such as turbine blades, other turbomachine components, and other structural components that operate in severe mechanical and / or thermal load environments, typically wear out. In the case of turbine blades, particularly the tip region, ie the radially outermost region of the turbine blade, is subjected to thermal stresses that can induce cracks during operation of the turbomachine, thereby significantly reducing the mechanical strength of the turbine blade. Further, the turbine blade is easily damaged by an external impact such as a collision with a bird, for example, in a tip region thereof.

  Powder layer melting is a cumulative lamination process that can process powder, especially metal and / or ceramic raw materials, into complex shaped three-dimensional workpieces. For this purpose, a layer of raw material powder is applied onto the carrier and laser-radiated in a position-selective manner, depending on the desired geometric shape of the workpiece to be produced. Laser radiation that has penetrated into the powder layer heats the raw material powder particles, resulting in melting or sintering. In addition, multiple layers of raw material powder are successively applied to a layer on the carrier that has already been laser treated until the workpiece has the desired shape and size. An apparatus for producing a molded body from powder raw materials by selective laser melting is described, for example, in EP 1793979B2.

  Powder layer melting can be used to manufacture prototypes, tools, replacement parts, medical prostheses, and the like based on CAD data. Furthermore, powder bed melting can be used to repair parts such as, for example, worn turbomachine parts and other structural parts.

  The present invention provides a carrier for use in a method for repairing multiple parts simultaneously by irradiating multiple raw material powder layers with electromagnetic radiation or particle radiation that enables accurate positioning and secure fixing of the parts to be repaired. The purpose is to do. It is another object of the present invention to provide a method and system for repairing a plurality of parts simultaneously by irradiating a plurality of raw material powder layers with electromagnetic radiation or particle radiation using such a carrier.

This object is achieved by the carrier of claim 1, the method of claim 8 and the system of claim 13 .

  The carrier includes a carrier portion having a carrier surface. In a preferred embodiment of the carrier, the carrier portion is designed to have a substantially flat plate-like carrier surface. A plurality of support portions are attached to the carrier portion. Each support portion has a support surface that extends from the carrier portion and is adapted to interact with the first surface of the part to be repaired. In particular, the support surface of each support is adapted to support in contact with the first surface of the part to be repaired. The support surface of the support portion need not contact the carrier surface of the carrier portion. The support surface of the support portion may be extended from the carrier surface side of the carrier portion while being in contact with the carrier surface or arranged at a distance from the carrier surface.

  The carrier has a plurality of clamp portions. At least some of the plurality of clamp portions are detachably attached to the carrier portion. When mounted, the clamping surface of the clamping part is adapted to interact with the second surface of the part to be repaired. Also, the clamp surface of the clamp part faces the support surface of the related support part, but the parts to be repaired are fixed to the carrier part while the repaired part is facing away from the carrier surface of the carrier part. Between the clamp surface and the support surface. Like the support surface of the support portion, the clamp surface of the clamp portion may also extend from the carrier surface side of the carrier portion while being in contact with the carrier surface or arranged at a distance from the carrier surface. In any case, at least a part of the support part and the plurality of clamp parts are arranged on the carrier part so that the clamp surfaces of the clamp parts respectively face the support surfaces of the associated support parts at a predetermined distance. The The part to be repaired may be a part such as, for example, a mechanical part, but is preferably an expensive part suitable for operation under high mechanical and thermal loads. In particular, the part is a turbine blade.

  Since at least some of the plurality of clamp portions are removably attached to the carrier portion, the part to be repaired has its first surface before the associated clamp portion is still in place in the carrier portion. Can be disposed on the carrier part in a state of being in contact with the support surface of the support part. Specifically, the clamp portion may not be attached to the carrier portion at all while the part to be repaired is disposed in the carrier portion. However, in order to be able to easily place the part to be repaired in a suitable position on the carrier part without hindering it by the clamp part, the clamp part already connected to the carrier part is connected to the carrier part and the associated support part. It can also be considered that it is movable. In the next stage, the part is attached to the carrier part by attaching the clamp part to the carrier part so that the clamping surface of the clamp part contacts the second surface of the part and presses the part against the support surface of the support part. It can be securely fixed to.

  The shape of the support surface of the support portion may be adjusted according to the shape of the first surface of the part to be repaired. Similarly, the shape of the clamp surface of the clamp portion may be adjusted according to the shape of the second surface of the part to be repaired. For example, the support surface of the support may have a contour that is close to the contour of the first surface of the part to be repaired. Similarly, the clamping surface of the clamping part may have a contour close to the contour of the second surface of the part to be repaired. Preferably, however, the clamping surface of the clamping part is designed to form a linear contact area with the second surface of the part to be repaired. Basically, all support parts of the carrier may have the same shape. Similarly, the clamp portions of the carrier may all have the same shape. In that case, the carrier is particularly suitable for mounting a plurality of repair parts of similar shape. However, when using a carrier for fixing a component having a first surface and / or a second surface having different shapes, a plurality of support portions and / or clamp surfaces having different support surfaces have different shapes. It is also conceivable to provide a carrier having a plurality of clamping parts.

  The part to be repaired is fixed at an appropriate position on the carrier part by the support part of the carrier and the clamp part associated therewith so that the repaired part of the part faces away from the carrier surface of the carrier part. The support part and the clamp part are preferably designed so that the part to be repaired extends further from the carrier surface than the support part or the clamp part. In this case, the repair location of the part to be repaired is arranged above the clamp surface of the clamp portion with respect to the carrier surface of the carrier portion. When the part to be repaired is designed in the form of a turbine blade, for example, the tip region of the turbine blade, which is particularly worn or damaged by an external impact, faces away from the carrier surface and faces the carrier surface of the carrier part. Thus, the component may be disposed on the carrier so as to be disposed above the support portion or the clamp portion. Conversely, during operation of the turbine blade of the turbomachine, the base of the turbine blade attached to the turbomachine shaft (rotor) may face the carrier surface of the carrier portion.

  The carrier has a fixing device that interacts with the fixing device of the device for repairing the part by selectively irradiating the plurality of raw material powder layers applied to the repaired part of the part with electromagnetic radiation or particle radiation. In an apparatus for repairing parts, a repair portion is formed at a repair location of each part by a cumulative additive manufacturing method. The fixing device may have a positioning pin, for example, and the first end thereof may be accommodated in a hole formed in the bottom surface of the carrier portion located on the opposite side of the carrier surface of the carrier portion. The second end of the locating pin may be received in a hole formed in the bearing portion of the device for repairing a part designed to support the carrier of the device. In addition, the fixing device may include at least one of a rail and a groove that are formed in the carrier portion of the carrier and interact with the rail and the groove of the fixing device of the corresponding device. Finally, the fixing device has suitable fixing means provided on the carrier part of the carrier, which can interact with the fixing means of the device, for example in order to securely fix the carrier to the device. May be.

  In this way, the carrier can easily and accurately fix a plurality of parts to be repaired to the appropriate position of the carrier portion of the carrier in an appropriate orientation. The carrier on which the part is fixed can then be transported to a device that repairs the part by selectively irradiating a plurality of raw material powder layers applied to the repaired part of the part with electromagnetic radiation or particle radiation. A plurality of parts can be repaired at the same time by forming a repaired part by a cumulative additive manufacturing method.

  Parts repair locations may be handled by removing the damaged portions of each component. For example, damaged parts of a part can be removed by machining, in particular by cutting the part. By removing the damaged part of the part, the repaired part can be formed on an intact repair site, so that the repaired part is highly resistant to mechanical and thermal loads. Basically, the repaired part of the part may be processed by removing the damaged part of the part before the part is fixed to the carrier part of the carrier. However, a particularly efficient repair process can be achieved if the damaged part of the part is removed after the part is secured to the carrier part of the carrier. Thus, in a preferred embodiment of the carrier, the fixing device is adapted to interact correspondingly with the fixing device of the machine tool that machines the repair location of the part to be repaired. In this case, the carrier can be used to support the part when removing the damaged part with a machine tool and replacing the damaged part with a repaired part by a cumulative additive manufacturing method.

  At least some of the plurality of support portions may be attached to the carrier portion in a row pattern. At least a portion of the plurality of clamp portions is supported in the first row of the row pattern such that the clamp surface faces the support surface of an associated support portion located in an adjacent row of the row pattern Each part may be detachably mounted. The clamp portions are removably attached to the support portions arranged in the first row of the row pattern, respectively, and the clamp surfaces are opposed to the support surfaces of the removably attached support portions. Is preferred. In this case, the clamping surface of the clamping part will automatically face the supporting surface of the associated supporting part arranged in the second row of the row pattern, fixing the part to be repaired to the carrier part of the carrier. Therefore, it is ready to interact with the support surface of the associated support.

  The support then implements two functions: supporting the part to be repaired and acting as a support for the clamp. Thereby, it is possible to eliminate the need to newly add a support part for positioning and fixing the clamp part on the carrier part. The clamp part may be detachably mounted on each support part by an appropriate fixing tool (attachment device) such as a screw. In any case, when the part to be repaired is placed at an appropriate position on the carrier part by bringing its first surface into contact with the support surface of the support part, the clamp part is against the support part and the carrier part. If it can be moved, the mounting device makes it possible to completely remove the clamp part from the respective support part or at least remove the clamp part from the respective support part.

  At least some of the plurality of clamp portions may be detachably attachable to the support portion by the attachment device. The attachment device may be designed, for example, in the form of a screw. At least some of the plurality of clamp portions interact with a surface formed on the support portion to move the clamp surface of the clamp portion toward the support surface of the associated support portion when the attachment device is fixed. It may have an inclined surface adapted to act. The surface of this support part and the inclined surface of the clamp part interact to ensure that the part to be repaired arranged between the clamp part and its associated support part can be securely fixed to the carrier part. As a result, the clamp part and its clamp surface may be moved in the direction of the associated support part and its support surface. The surface of the support portion that interacts with the inclined surface of the clamp portion is preferably a flat surface.

  The attachment device may be adapted to extend through a hole formed in the clamp portion and engage a thread provided in the support portion. Thereby, a clamp part and the components repaired as a result can be fixed easily easily.

  The carrier may further have a first end attached to the carrier portion in its first edge region. The first end has at least one support surface adapted to interact with a first surface of a part to be extended and repaired from the carrier surface of the carrier portion. Preferably, the first end is provided with a plurality of support surfaces, and the number of support surfaces provided at the first end is arranged in a row on the carrier part adjacent to the first end. It is preferable to match the number of clamp parts formed.

  The carrier may further have a second end attached to the carrier portion in its second edge region. The second end portion and the first end portion are preferably provided in edge regions on opposite sides of the carrier portion. The second end may be configured such that at least one clamp portion can be removably mounted such that the clamp surface faces the support surface of the associated support portion. The second end is preferably configured to allow a plurality of clamp portions to be removably attached, and the number of clamp portions removably attached to the second end is a second number. It is preferable to match the number of support portions arranged in a row on the carrier portion adjacent to the end portion.

  At least a part of the plurality of support parts and / or the first end part may have a heating part for heating the support surface. By integrating the heating part into the support part and / or the first end, it is possible to eliminate the need for a separate heating part on the carrier part. The heating part for heating the support surface and / or the first end of the support part can heat the support part and / or the part to be repaired supported on the first end, and the cumulative lamination The thermal stress generated in the part can be reduced when the repaired part is formed at the repaired part of the part by the molding method. As a result, for example, expensive parts such as turbomachine parts, particularly turbine blades, can be repaired with high quality without damage (without occurrence of cracks).

In the method of repairing a plurality of parts, the first surface of at least a part of the plurality of parts interacts with the support surface of the support part extending from the carrier surface of the carrier part, so that the carrier part of the carrier A plurality of parts to be repaired are arranged in a.
The component is sandwiched between the clamp surface of the clamp portion and the support surface of the related support portion so that the repaired portion of the component is separated from the carrier surface of the carrier portion and the component is fixed to the carrier portion. The plurality of clamp portions are mounted on the carrier portion such that the clamp surface of the clamp portion interacts with the second surface of the part to be repaired. Specifically, after the part to be repaired is positioned on the carrier part in a state where the first surface thereof is in contact with the support surface of the support part, the clamp part is attached to the carrier part.

  After fixing the part to be repaired to the carrier part of the carrier, the carrier is installed in the device that repairs the part by selectively irradiating the plurality of raw material powder layers applied to the part repaired with electromagnetic radiation or particle radiation. To fix. In this apparatus, a part is repaired by selectively irradiating a plurality of raw material powder layers applied to the repaired part of the part with electromagnetic radiation or particle radiation, for example, by a cumulative additive manufacturing method.

  Before fixing the carrier to the device that repairs the part by irradiating electromagnetic radiation or particle radiation to a plurality of raw material powder layers applied to the part repaired part, the carrier to which the part to be repaired is fixed You may fix to the machine tool which processes a repair location.

  You may attach at least one part of several support parts to a carrier part by the pattern of a row | line | column. Further, at least a portion of the plurality of clamp portions is disposed in the first row of the row pattern such that the clamp surface faces a support surface of an associated support portion disposed in an adjacent row of the row pattern. Each support part may be detachably mounted.

  It is preferable that at least a part of the plurality of clamp portions can be detachably attached to the support portion by the attachment device. At least a portion of the plurality of clamp portions is a surface formed on the support portion for moving the clamp surface of the clamp portion toward the support surface of the support portion related thereto when the mounting device is fixed. And may have an inclined surface that interacts. The attachment device may engage a thread formed in the support through a hole formed in the clamp.

  At least one that extends from the carrier surface of the carrier portion and is repaired by interacting with the first end support surface and the first surface attached to the carrier portion in the first edge region. Two parts may be arranged in the carrier part of the carrier. Alternatively, or in addition, a second surface attached to the carrier portion in the second edge region, with the clamping surface facing the supporting surface of the associated supporting portion. You may attach to an edge part.

  In order to reduce the thermal stress generated in the part when the repaired part supported on the support part is heated and the repair part is formed on the repair part of the part by cumulative additive manufacturing method, You may heat the support surface of at least one part of a support part, and / or a 1st edge part.

  A system for repairing a plurality of parts has the carrier described above. The system further includes an apparatus for repairing the part by selectively irradiating a plurality of raw material powder layers applied to the repaired part of the part with electromagnetic radiation or particle radiation. The device has a securing device adapted to interact with the carrier securing device. By causing the carrier fixing device and the device fixing device to interact with each other, the carrier to which the part to be repaired is fixed can be accurately positioned in the device, and can be reliably fixed to the device.

  The fixing device of this device may have, for example, a hole formed in the bearing surface of the bearing portion of the device, which is suitable for accommodating the positioning pin of the carrier fixing device. In addition, the fixing device may include, for example, a rail and / or a groove formed on the bearing portion and interacting with the rail and / or the groove of the carrier fixing device. Finally, the fixing device may have suitable fixing means formed in the bearing part, for example interacting correspondingly with the fixing means of the carrier in order to securely fix the carrier to the device. The bearing portion of the apparatus may be disposed in the process chamber of the apparatus, or may be a firmly fixed bearing section. However, the bearing part is preferably designed so that it can be arranged in the vertical direction. In order to maintain a controlled atmosphere, particularly an inert atmosphere, within the process chamber, the process chamber containing the bearing portion may be hermetically sealed to the ambient atmosphere, i.e., the environment around the process chamber.

  The apparatus further includes a powder coating apparatus for applying the raw material powder on the carrier so that the repaired part of the part to be repaired fixed to the carrier is covered with the raw material powder. In particular, the powder coating apparatus may apply the raw material powder so that the carrier to which the part to be repaired is fixed is buried in the raw material powder. However, if the additional powder layer applied by the powder application device already covers the part to be repaired, the raw material powder is manually placed on the carrier until the carrier to which the part to be repaired is fixed is buried in the raw material powder. It is also conceivable to apply by. The raw material powder may be a material of a part to be repaired. The raw material powder is preferably the same material as the part to be repaired. When the part to be repaired is designed in the form of a turbine blade, the raw material powder is preferably a metal powder, in particular a metal alloy powder, Ti, Ni or Fe-based (super) alloy, or tungsten, molybdenum alloy A powder is preferred. However, it is also conceivable to use ceramic powder or powder containing other materials as raw material powder. The raw material powder may have an appropriate particle size or particle size distribution. However, it is preferable to process a powder having a particle size of less than 100 μm.

  Finally, the device has an irradiation device for selectively irradiating the raw material powder applied to the carrier with electromagnetic radiation or particle radiation to form a repaired part at the repaired part of the part by cumulative additive manufacturing. May be. The raw material powder applied on the carrier may be selectively irradiated with electromagnetic radiation or particle radiation depending on the desired shape of the repaired part formed at the repaired part of the part. The irradiation device may be adapted to irradiate the raw powder with radiation that preferably causes regioselective melting of the raw powder particles. The irradiation device may comprise at least one irradiation source, in particular a laser source, and at least one optical unit for directing and / or processing a beam of radiation emitted by the irradiation source. The optical unit may include an optical element such as an objective lens, particularly an fθ lens, and a scanner. The scanner preferably has a diffractive optical element and a deflection mirror.

  By selectively irradiating one raw material powder layer applied to the repaired part of the part with electromagnetic radiation or particle radiation, a first layer of the repaired part is formed at the repaired part of the part. The cumulative additive manufacturing method used to form the repaired part further repeats the vertical bearing part of the device with the carrier supported so as to offset the height of the already formed layer of the repaired part. Applying a further layer of raw powder on the carrier so that the part containing the already formed layer of the repair part is covered by the raw powder, and an already formed layer of the repair part. There may be the step of selectively irradiating the raw material powder layer applied on the part to be included to form a further layer of the repaired part.

  Preferred embodiments of the invention are described in detail below with reference to the accompanying schematic drawings.

It is a figure which shows the system which repairs several components simultaneously by the cumulative additive manufacturing method. FIG. 2 is a detailed three-dimensional display of carriers used in the system of FIG. FIG. 3 is a side view of the carrier of FIG. 2. FIG. 3 is a top view of the carrier of FIG. 2. FIG. 5 is a cross-sectional view of the carrier of FIG. 2 taken along line EE of FIG. 4.

  FIG. 1 shows a system 100 having an apparatus 10 for producing parts by a cumulative additive manufacturing method. The apparatus 10 has a process chamber 12. The powder coating device 14 provided in the process chamber 12 has a function of coating the raw material powder on the bearing portion 16, the component, or the structure located thereon, as will be described in detail below. The process chamber 12 is sealed to the ambient atmosphere, i.e. the environment surrounding it. The bearing portion 16 is designed to be vertically displaceable, so that when the plurality of layers are stacked from the raw material powder on the bearing portion 16, the height of the parts to be manufactured increases, It can be moved downward in the vertical direction.

  The apparatus 10 further includes an irradiation device 18 for selectively irradiating the raw material powder applied on the bearing portion 16, the component, or the structure located thereon with laser radiation. Depending on the desired shape of the part to be manufactured, the irradiation device 18 may expose the raw material powder to laser radiation in a position-selective manner. The irradiation device 18 has a housing 20 that can be sealed. A radiation beam 22, in particular a laser beam, provided by a radiation source 24, in particular a laser source, is directed to the housing 20 through an opening 26. The radiation source may comprise, for example, a diode-pumped ytterbium fiber laser that emits laser light having a wavelength of about 1070 to 1080 nm.

  The irradiation device 18 further has an optical unit 28 for directing and processing the radiation beam 22. The optical unit 28 may include a beam expander, a scanner, and an objective lens that expand the radiation beam 22. Alternatively, the optical unit 28 may have a beam expander that includes focusing optics and a scanner unit. By means of the scanner unit, the position of the focal point of the radiation beam 22 both in the direction of the beam path and in the plane perpendicular to the beam path can be changed and adjusted. The scanner unit may be designed in the form of a galvanometer scanner and the objective lens may be an f-θ lens.

  The bearing portion 16 of the apparatus 10 supports the carrier 30 of the system 100 with a plurality of parts 32 to be repaired secured. Details of the carrier 30 are shown in FIGS. The carrier 30 has a carrier portion 34, and in the embodiment of the carrier 30 shown in these drawings, the carrier portion 34 is plate-shaped and is designed to have a flat carrier surface 36. A plurality of support portions 38 are attached to the carrier portion 34. In the embodiment of the carrier 30 shown in these figures, the support portions 38 are designed to be separated from the carrier portion 34 and are removably attached to the carrier portion 34 by screws 39. Locating pins may be used to simplify positioning the support 38 on the carrier and defining the orientation. However, it is also conceivable to provide the carrier 30 with a support portion 38 that is formed integrally with the carrier portion 34 or fixed to the carrier portion 34.

  The support portion 38 is formed on the base portion 41 of the support portion 38 and has a support surface 40 that extends from the carrier surface 36 of the carrier portion 34. The support surface 40 of the support portion 38 is adapted to interact with the first surface 42 of the part 32 to be repaired, and the shape of this support surface 40 is the first of the part 32, particularly as shown in FIG. 1 has a contour close to that of the surface 42. In this way, the component 32 to be repaired is supported by the support surface 40 of the support portion 38 via its first surface when placed on the carrier 34.

  Further, the carrier 30 has a plurality of clamp portions 44. As shown in FIG. 3, the majority of the clamp portion 44 has a clamp surface 46 adapted to interact with the second surface 48 of the part 32 to be repaired, the support surface of the support portion 38 associated therewith. The carrier part 34 is detachably mounted so as to face 40. The clamping surface 46 of the clamping part 44 is designed to form a linear contact area with the second surface 48 of the part 32 to be repaired. In this way, the parts to be repaired between the clamping surface 46 of the clamping part 44 and the supporting surface 40 of the supporting part 38 by interacting the associated supporting part 38 and the clamping part 44 with each other. Pinch. As a result, the component 32 is securely fixed to the carrier portion 34 in a state where the repaired portion 50 faces away from the carrier surface 36 of the carrier portion 34.

  The support 38 and the clamp 44 are designed so that the part 32 to be repaired extends further from the carrier surface 36 of the carrier 34 than the support 38 and the clamp 44. That is, the repair point 50 of the part 32 is disposed above the support part 38 and the clamp part 44 with respect to the carrier part 34.

  The support portions 38 are arranged on the carrier portions 34 in a row pattern. In the embodiment of the carrier 30 shown in the figure, six rows R 1 to R 6 of the support 38 are arranged on the carrier 34. As can be seen in particular from FIGS. 2, 3 and 5, the multiple clamping portions 44 are arranged such that the clamping surfaces 46 face the supporting surfaces 40 of the associated supporting portions 38 arranged in adjacent rows of the row pattern. Removably attached to a support 38 disposed in the first row of the row pattern. For example, the clamps 44 respectively attached to the supports 38 located in the first row R1 of the row pattern have associated clamps 46 whose clamping surfaces 46 are located in the second row R2 of the row pattern. The direction is determined so as to face the support surface 40. The clamp part 44 is detachably attached to the support part 38 by an attachment device 52 designed in the form of a screw. Each of the attachment devices 52 extends through a hole 54 formed in the clamp portion 44 and engages with a screw thread 56 provided on the support portion 38. Thereby, the clamp part 44 can be removed from the support part 38, or if the clamp part can move with respect to the support part 38 and the carrier part 34, it is released from fixing to at least the support part 38. it can.

  In particular, as shown in FIG. 5, the clamp portion 44 has an inclined surface 58 that is adapted to interact with a flat surface 60 formed on the support portion 38 to which the clamp portion 44 is attached. When the mounting device 52 is fixed, the clamping portion 44 and its clamping surface 46 are caused to interact with each other by the interaction between the inclined surface 58 of the clamping portion 44 and the surface 60 of the supporting portion 38. It is moved in the direction of 40. As a result, the part 32 to be repaired arranged between the clamp part 44 and the associated support part 38 is securely fixed to the carrier part 34.

  Furthermore, the carrier 30 has a first end 64 attached to the carrier part 34 in its first edge region. The second end 66 is attached to the carrier portion 34 in a second edge region located on the opposite side of the first edge region. The first end 64 is provided with a plurality of support surfaces 68 that extend from the carrier surface 36 of the carrier portion 34 and are each adapted to interact with the first surface 42 of the part 32 to be repaired. . The second end 66 has a clamping portion 44 that interacts with a support portion 38 disposed in the first row R1 of the row pattern to attach the part 32 to be repaired to the carrier portion 34. Can be removably mounted on the carrier portion 34 such that it faces the support surface 40 of its associated support portion 38.

  As shown in FIG. 2, the support unit 38 includes a heating unit 70 that heats the support surface 40 of the support unit 38 and the support surface 68 formed on the first end portion 64. Thereby, the component 32 to be repaired, which is in close contact with the support portion 38 and the first end portion 64 via the first surface 42, can be heated.

  Finally, as shown in FIGS. 1, 2, 3 and 5, the carrier 30 has a securing device 72 adapted to interact with the securing device 74 of the device 10. The fixing device 72 has a positioning pin that is received in both the hole 78 formed in the carrier portion 34 and the hole 80 provided in the bearing portion 16. Furthermore, the carrier 30 is formed on the side of the carrier part 34 and adapted to interact with rails provided on the transport vehicle (not shown) when the carrier 30 is transported from the machine tool to the device 10, for example. A groove 82 is provided.

  As shown in the figure, due to the interaction between the fixing device 72 of the carrier 30 and the corresponding fixing device 74 of the device 10, the carrier 30 to which the part 32 to be repaired is fixed is accurately placed in the process chamber 12 of the device 10. And can be securely fixed at an appropriate position. However, the fixing device 72 is also adapted to interact with a fixing device of a machine tool (not shown) that machines the repair point 50 of the part 32 to be repaired. The fixing device of the machine tool may be designed similarly to the fixing device 74 of the device 10.

  In order to repair the part 32, the part 32 is first formed on the carrier 30 such that its first surface 42 contacts the support surface 40 of the support 38 or the support surface 68 of the first end 64. It is arranged on the carrier part 34. At this time, the component 32 is located on the carrier portion 34, but the clamp portion 44 is not yet in its final position, that is, the clamp portion 44 is completely removed from the support portion 38 and the second end portion 66. Or if the clamp portion 44 is movable relative to the support portion 38, the second end portion 66, and the carrier portion 34, it is not fixed to at least the support portion 38 or the second end portion 66. .

  The clamping portion 44 is then placed in an appropriate position such that the clamping surface 46 presses the part 32 against the supporting surface 40 of the supporting portion 38 associated therewith or the supporting surface 68 provided at the first end 66. Attach to. As a result, the component 32 is securely fixed to the carrier portion 34 with the repaired portion 50 facing away from the carrier surface 36 of the carrier portion 34.

  Thereafter, the carrier 30 to which the component 32 is attached is conveyed to the machine tool, and is fixed thereto by engaging the fixing device 72 of the carrier 30 with the fixing device of the machine tool. In the machine tool, the repaired portion 50 is processed by machining with a cutting tool. Since the repair location 50 is disposed above the support portion 38, the clamp portion 44, and the end portions 64 and 66 of the carrier 30 with respect to the carrier portion 34, the operation of the cutting tool is affected by the member of the carrier 30. Absent.

  After the completion of this processing step, the carrier 30 is removed from the machine tool and conveyed to the apparatus 10. The carrier 30 is positioned on the bearing portion 16 of the device 10 and fixed thereto by the interaction of the fixing device 74 of the device 10 and the fixing device 72 of the carrier 30. Thereafter, the raw material powder is manually applied onto the carrier 30 until the carrier 30 to which the part 32 to be repaired is fixed is buried in the raw material powder. Then, one raw material powder layer is apply | coated with the powder application | coating apparatus 14 on the components 32 with which the carrier 30 and the repair location 50 were covered. This raw material powder layer is selectively irradiated with a radiation beam 22. In particular, the radiation beam 22 is guided onto the raw material powder according to the CAD data of the repaired part to be formed. After the first layer of the repair portion is formed at the repair portion 50 of the part 32, the bearing portion 16 and the carrier 30 are lowered in the vertical direction, so that the next powder layer can be applied by the powder application device 14. Become. Thereafter, the next powder layer is irradiated by the irradiation device 18. In this way, for each layer, repair parts are stacked on the repair point 50 of the part 32.

The parts 32 to be repaired are heated by the heating part 70 integrated with the support part 38 and the first end part 64 while the repair parts are stacked by the cumulative additive manufacturing method. Thereby, the thermal stress which generate | occur | produces in the components 32 when forming a repair part can be reduced.

Claims (13)

Carrier (30),
A carrier portion (34) having a carrier surface (36);
Attached to the carrier part (34), each extending from the carrier surface (36) of the carrier part (34) and adapted to contact the first surface (42) of the part (32) to be repaired. A plurality of support portions (38) having a supported surface (40);
A plurality of clamp portions (44), wherein the clamp surfaces (46) of the plurality of clamp portions (44) are adapted to contact the second surface (48) of the part (32) to be repaired; The clamping surface (46) faces the supporting surface (40) of the associated supporting part (38), and the repaired part (50) of the part (32) serves as the carrier surface (36) of the carrier part (34). At least a part of the plurality of clamp parts (44) in a state where the part (32) to be repaired fixed to the carrier part (34) while facing away from the clamp part is sandwiched between the clamp surface and the support surface A plurality of clamp parts (44) removably attached to the carrier part (34);
Fixing device for apparatus (10) for repairing part (32) by selectively irradiating electromagnetic radiation or particle radiation to a plurality of raw material powder layers applied to repair part (50) of said part (32) A fixing device (72) in contact with (74) ,
At least a part of the plurality of support parts (38) is attached to the carrier part (34) in a row pattern, and at least a part of the plurality of clamp parts (44) has the clamping surface (46) The row arranged in the first row (R1) of the row pattern so as to face the support surface (40) of the associated support (38) arranged in the adjacent row (R2) of the row pattern. A carrier characterized in that it can be detachably attached to the support part (38) . The carrier according to claim 1, wherein the fixing device (72) is also in contact with a fixing device of a machine tool that processes the repaired part (50) of the part (32) to be repaired. At least a part of the plurality of clamp portions (44) can be removably attached to the support portion (38) by an attachment device (52), and when the attachment device (52) is fixed, A surface (60) formed on the support (38) for moving the clamping surface (46) of the clamp (44) in the direction of the support surface (40) of the associated support (38); 3. Carrier according to claim 1 or 2 , characterized in that it has an inclined surface (58) adapted to contact . The attachment device 52 is adapted to extend through a hole (54) formed in the clamp part (44) and engage a thread (56) provided in the support part (38). The carrier according to claim 3 , wherein the carrier is one. Furthermore, the first surface (42) of the part (32) to be repaired by being attached to the carrier part (34) in the first edge region and extending from the carrier surface (36) of the carrier part (34). ) be provided with a first end having at least one support surface (68) adapted to contact (64) from claim 1, wherein according to any one of claims 4 Career. Furthermore, in the second edge region, it is attached to the carrier part (34), so that the clamping surface (46) faces the support surface (40) of the associated support part (38), so that at least one carrier according to any one of claims 1 to 5, characterized in that it comprises a second end (66) to allow detachably mounted to the clamping portion (44). At least one of the plurality of support portions (38) and at least one of the first end portions (64) are the support surface (40, 68) of the support portion (38) and the first end portion. The carrier according to any one of claims 1 to 6 , further comprising a heating section (70) for heating at least one of (64). A method of repairing a plurality of parts (32), comprising:
The support surface (40) of the support portion (38) in which at least part of the first surface (42) of the plurality of parts (32) extends from the carrier surface (36) of the carrier portion (34) of the carrier (30). Placing the plurality of parts (32) to be repaired on the carrier part (34) in contact with the carrier part (34);
The part (32) is sandwiched between the clamp surface (46) of the clamp part (44) and the support surface (40) of the associated support part (38), thereby repairing the part (32) ( 50) is separated from the carrier surface (36) of the carrier part (34), and the component (32) is fixed to the carrier part (34) so that the plurality of clamp parts (44) Mounting the carrier part (34) such that the clamping surface (46) of the part (44) contacts the second surface (48) of the part (32) to be repaired;
The carrier (10) for repairing the part (32) by selectively irradiating a plurality of raw material powder layers applied to the repaired part (50) of the part (32) with electromagnetic radiation or particle radiation. Fixing (30);
By selectively irradiating electromagnetic radiation or particle radiation in a plurality of raw material powder layer applied onto repaired portion (50) of the part (32), possess a step of repairing the component (32), a
At least a part of the plurality of support parts (38) is attached to the carrier part (34) in a row pattern, and at least a part of the plurality of clamp parts (44) is attached to the row by the clamp surface (46). Arranged in the first row (R1) of the row pattern so as to face the support surface (40) of the associated support portion (38) arranged in the adjacent row (R2) of the pattern of A method characterized in that each of the support parts (38) is detachably mounted . The carrier (30) is applied to an apparatus (10) for repairing the part (32) by irradiating the plurality of raw material powder layers applied to the repaired part (50) of the part (32) with electromagnetic radiation or particle radiation. 9. The carrier according to claim 8 , wherein the carrier to which the part to be repaired (32) is fixed is fixed to a machine tool for machining a repair point (50) of the part (32) before fixing the part. the method of. When at least a part of the plurality of clamp portions (44) is detachably attached to the support portion (38) by an attachment device (52) and the attachment device (52) is fixed, the clamps Contact with the surface (60) formed on the support (38) for moving the clamping surface (46) of the part (44) towards the support surface (40) of the associated support (38) 10. A method according to claim 8 or 9 , characterized in that an inclined surface (58) is provided. A support surface (68) of a first end (64) extending from a carrier surface (36) of the carrier portion (34) and attached to the carrier portion (34) in a first edge region; Placing at least one part (32) to be repaired on the carrier part (34) of the carrier (30), such that one surface (42) is in contact ,
At least one of the clamping parts (44) is placed in the second edge region with the carrier part (44) so that the clamping surface (46) faces the supporting surface (40) of the associated support part (38). 11. A method according to any one of claims 8 to 10 , characterized in that it is attached to the second end (66) attached to 34). Wherein the plurality of support portions (38) of claim 11 claim 8, characterized in that heating at least one of said at least part of the support surface (40,68) a first end (64) The method of any one of these. A system (100) for repairing a plurality of parts (32),
The carrier (30) according to any one of claims 1 to 7 ,
An apparatus (10) for repairing a part (32) by selectively irradiating a plurality of raw material powder layers applied to a repair point (50) of the part (32) with electromagnetic radiation or particle radiation. A fixing device (74) adapted to come into contact with the fixing device (72) of the carrier (30), and the part to be repaired (applied by applying raw material powder on the carrier (30)). 32) The powder coating device (14) adapted to cover the repaired part (50) with the raw material powder, and selectively applying electromagnetic radiation or particle radiation to the raw material powder applied to the carrier part (30) A system having an irradiation device (18) that irradiates and forms a repair portion at a repair location (50) of the component (32) by a cumulative additive manufacturing method.

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